Prof Allen Cheng is an infectious diseases physician. He is Professor/Director of Monash Infectious Diseases at Monash Health. He has a PhD (Flinders University), a Master of Public Health (Monash University) and a Master of Biostatistics (University of Queensland). He has previously worked as an infectious diseases and general physician in Darwin and Geelong, and has worked in remote communities in the Top End of Australia, and in Papua New Guinea, Thailand, the United States and Finland.

He was Chair of the Advisory Committee for Vaccines (2017-22) and Co-Chair of the Australian Technical Group on Immunisation (ATAGI 2018-22). He is also a member of the National Influenza Surveillance Committee. During the COVID-19 pandemic, he was a member of the Australian Health Protection Principal Committee (2020-22), the Communicable Diseases Network of Australia and was was seconded to the Victorian Department of Health as Deputy Chief Health Officer (2020-21).